code: def google_openid_app():
      confs = {
          (
              "api",
              "auth_backends",
          ): "airflow.providers.google.common.auth_backend.google_openid",
          ("api", "enable_experimental_api"): "true",
      }
      with conf_vars(confs):
          return create_app(testing=True)
  
file_path: airflow/tests/providers/google/common/auth_backend/test_google_openid.py
imports: from __future__ import annotations
  from unittest import mock
  import pytest
  from flask_login import current_user
  from google.auth.exceptions import GoogleAuthError
  from airflow.www.app import create_app
  from tests.test_utils.config import conf_vars
  from tests.test_utils.db import clear_db_pools
label_desc: Use image node_id 1 for calling a global function with example usage: google_openid_app() and returns: create_app